Second virial coefficients at 300-500 K for butane, tetramethylsilane and 'Freon 114'

1977 ◽  
Vol 30 (8) ◽  
pp. 1645 ◽  
Author(s):  
GA Bottomley ◽  
DB Nairn
Keyword(s):  
Spherical Shell ◽  
Atmospheric Pressure ◽  
Virial Coefficients ◽  
Constant Volume ◽  
Second Virial Coefficients ◽  
Lennard Jones ◽  
Initial Values

A constant-volume gas-thermometer technique has been used at sub- atmospheric pressure to provide second virial coefficients to above 500 K from initial values in the vicinity of 300 K. The results for three organic vapours, butane, tetramethylsilane, 1,2-dichloro-1,1,2,2- tetrafluoroethane, are provided and expressed in terms of the intermolecular parameters for the Lennard-Jones (12-6) potential and the De Rocco and Hoover spherical-shell potential.

scholarly journals Low Temperature Second Virial Coefficients for a Lennard‐Jones Gas

1952 ◽  
Vol 20 (11) ◽  
pp. 1670-1672 ◽  
Author(s):  
Leo F. Epstein
Keyword(s):  
Low Temperature ◽  
Virial Coefficients ◽  
Second Virial Coefficients ◽  
Lennard Jones

Second Virial Coefficients of the Lennard-Jones (6,m) Gases.

1966 ◽  
Vol 11 (1) ◽  
pp. 77-80 ◽  
Author(s):  
M. M-n. Sze ◽  
H. W. Hsu
Keyword(s):  
Virial Coefficients ◽  
Second Virial Coefficients ◽  
Lennard Jones

scholarly journals Determination of Energy Parameters in Lennard-Jones Potentials from Second Virial Coefficients

1972 ◽  
Vol 48 (6) ◽  
pp. 2132-2143 ◽  
Author(s):  
Motohisa Oobatake ◽  
Tatsuo Ooi
Keyword(s):  
Virial Coefficients ◽  
Second Virial Coefficients ◽  
Energy Parameters ◽  
Lennard Jones

scholarly journals Comment on Koo–Hsu Second Virial Coefficients Using a Modified Lennard‐Jones (6, n, γ) Potential

1971 ◽  
Vol 54 (9) ◽  
pp. 4139-4140
Author(s):  
R. E. Caligaris ◽  
C. F. Mosquera ◽  
A. E. Rodriguez
Keyword(s):  
Virial Coefficients ◽  
Second Virial Coefficients ◽  
Lennard Jones

Correction- Second Virial Coefficients of the Lennard-Jones (6,m) Gases

1971 ◽  
Vol 16 (1) ◽  
pp. 127-127
Author(s):  
M M-n. Sze ◽  
H W. Hsu
Keyword(s):  
Virial Coefficients ◽  
Second Virial Coefficients ◽  
Lennard Jones

Second virial coefficients of Lennard–Jones chains

1999 ◽  
Vol 155 (1) ◽  
pp. 75-83 ◽  
Author(s):  
Y.C Chiew ◽  
V Sabesan
Keyword(s):  
Virial Coefficients ◽  
Second Virial Coefficients ◽  
Lennard Jones

Mixture virial coefficients for the Hamann-Lambert model for globular molecules

1971 ◽  
Vol 24 (12) ◽  
pp. 2449 ◽  
Author(s):  
CHJ Johnson ◽  
TH Spurling
Keyword(s):  
Experimental Data ◽  
Least Squares ◽  
Virial Coefficient ◽  
Virial Coefficients ◽  
Second Virial Coefficients ◽  
The Third ◽  
Lennard Jones ◽  
Atomic Interactions ◽  
Lambert Model ◽  
Experimental Values

The Hamann-Lambert model for globular molecules using Lennard-Jones 12- 6 potential functions for the atomic interactions has been used to obtain second virial coefficients for CH4, CF4, SF6, SiF4, CMe4, SiMe4, and the mixtures CH4-CF4, CH4-SF6, CH4-CMe4, CH4-SiMe4, and CF4-SF6. Additive third virial coefficients have been computed where experimental data are available. Of the 18 parameter sets needed for the 12-6 interactions in the above molecules and their combinations ten were obtained by a least-squares fitting process using experimental values of second virial coefficients, five were obtained from combining rules, and the remaining three from sources independent of virial coefficient data. The computed values of the virial coefficients agree well with the experimental data although in the case of the third virial coefficients improved agreement would be obtained if some form of non-additivity could be allowed for.

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